Xbox 360 titles become available for download over the Xbox Live Marketplace.

Why we think it will happenMicrosoft has built the infrastructure for the concept (Games able to be loaded onto a hard drive, HDD sizes are there). It may happen and Halo 3: ODST may be the title to kick start it.

Why we think it will happenRumors have been swirling about a possible 2-disc Forza sequel and, since Bizarre was snatched up by Activision, Turn 10 is Microsoft's premier racing game team.

Why we think it won't happenWith studios famously feeling typecast as factories for its franchises (Eg. Bungie with Halo, Ensemble with Age of Empires), Turn 10 may be looking to branch out into something a little less conventional.

A gaming handheld device is revealed, likely Zune branded.Why we think it will happenRumblings say Microsoft is looking to bring the Zune to the next level (See: iPhone, iPod Touch) with some game functionality (ala XBLA).

Why we think it won't happenHistorically, Microsoft hasn't had luck with its Zune platform and right now the iPhone (and iPod Touch) is taking the industry by storm.

Splinter Cell Conviction makes its mark at Microsoft's conference.Why we think it will happenAfter sulking in the shadows for so long, it's time for Sam to show off how he's evolved since first being announced as an Xbox 360 exclusive in 2007.Why we think it won't happenWith another high profile card in its back pocket (Assassin's Creed 2), Ubisoft may want to keep Sam in the shadows.

Halo 3: ODST is dated and demoed for the audience, showing off the title's unique gameplay.

Why we think it will happenIn an interview during Episode 117 of the Joystiq Xbox Podcast, Bungie community lead Brian Jarrard implied more than a few details for ODST would be forthcoming ... and reminded us a big industry event was coming up! An onstage demo showing off the new game (like Gears of War and Halo 2 before it) would be a wise move.

Why we think it won't happenMicrosoft loves to tease and might think a quick trailer and date will be enough.

Why we think it will happenBlu-ray won the HD format far, why not make the all-in-one box a little more all-in-one? Why we think it won't happenWhy help the competition sell its format when digital download sales and Netflix are doing fine?

Why we think it will happenODST! ZOMG! ODST! There should be another Halo console bundle! Why we think it won't happenMight not be presentation worthy enough, but there'll be plenty of bundles in the future.

The mysterious BigPark will finally show off what it's been working on during the conference.

Why we think it will happenMicrosoft -- which bought the studio -- has been very hush-hush about what the developer is doing, but has said the game will debut at E3. The conference is the best way to get people interested. Why we think it won't happenBig Park isn't working on anything cool.